Chryseobacterium morensis strain F3-Prior genome

We report here the complete genome sequence and the phenotype characterization of a new strain of a recent novel species of Chryseobacterium with a clear though weak phytopathogenic potential on Vicia faba. Initially detected in an aphid-associated V. faba seedling growth cabinet, it induced typical soft rot in all aphid-harboring plants. The causal agent was identified as Chryseobacterium sp., close to C. indologenes by 16S amplicon sequencing, but not identical to any characterized species. This prompted us to characterize this F3_Prior strain and determine its genome sequence. The genome consists of a circular chromosome of 5,277 Kb without plasmid. The main phenotypic traits of strain F3_Prior are heavy enzyme secretion, among which pectinases and proteases, no direct transmission by aphids at notable frequency but showing increased symptoms on aphid-infected plants, and potential migration through xylem pathway from crown to apex during in planta artificial infection. Very recently, this strain was shown to belong to the same species as strain JV274.1, a PGPR strain on maize, which was characterized by colleagues (Vacheron et al. 2017), and published as a novel species in a companion paper (Muller et al. in prep).